Water leakage prevention structure for internal thread connector of water supply pipe

Abstract

The utility model belongs to the field of water supply pipes, particularly relates to a water-leakage-proof structure for an internal thread connector of a water supply pipe, and aims to solve the problem that the conventional water supply pipe is generally coated by a raw material belt and then connected during installation, but the connected water supply pipe is poorer in leakproofness, and the following scheme is provided: the water-leakage-proof structure comprises a main pipeline and a connecting pipe, a second sealing ring abuts against one side of a first circular groove through a first sealing assembly, a pipeline connector is fixedly communicated with one side of the main pipeline, the pipeline connector and the main pipeline are integrally formed, the connecting pipe and the pipeline connector are used in a matched mode, and a first external thread is formed in the outer wall of the connecting pipe. The sealing performance of the device is guaranteed, the sealing performance between the connecting pipe and the second limiting plate can be improved again through the arrangement of a third sealing ring, the first sealing ring can abut against one end of the pipeline connector through a second sealing assembly, and the stability of connection between the first limiting plate and the pipeline connector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply pipes, in particular to a water supply pipe inner thread joint water leakage prevention structure. Background Art

[0002] Water supply pipes are green, energy-saving and environmentally friendly pipes that do not rust, scale or shrink, have low fluid resistance, can effectively reduce water supply energy consumption and increase water supply at water points. They are ideal pipes for pipe networks. Water supply pipes are divided into metal pipes, composite pipes and plastic pipes. Metal pipes are mainly divided into copper pipes and stainless steel pipes. Metal pipes have many characteristics such as safety, hygiene and durability, and are the most ideal water pipes for home decoration and workwear.

[0003] When installing existing water supply pipes, they are usually only covered with raw tape and then connected. However, the water supply pipes connected in this way have poor sealing performance, and thus have a short service life and are inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the water supply pipes in the prior art are usually only covered with raw tape and then connected during installation, but the water supply pipes connected in this way have poor sealing performance, and thus have a short service life and are inconvenient to use. A water-leakage-proof structure for the threaded joints inside the water supply pipes is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A water supply pipe internal thread joint water leakage prevention structure, comprising a main pipe and a connecting pipe, one side of the main pipe is fixedly connected with a pipe joint, the pipe joint and the main pipe are integrally formed, the connecting pipe and the pipe joint are used in conjunction with each other, the outer wall of the connecting pipe is provided with a first external thread, the interior of the pipe joint is provided with a first circular groove and a second circular groove, the inner diameter of the second circular groove is greater than the inner diameter of the first circular groove, the inner wall of the first circular groove is provided with a third internal thread, the third internal thread is threadedly connected with the first external thread, the interior of the pipe joint is provided with a through hole, the through hole is located at one end of the first circular groove and is connected to the first circular groove;

[0007] A first sealing component, which is disposed on an inner wall of one side of the first circular groove and is used to seal one end of the connecting pipe;

[0008] The second sealing component is arranged between the connecting pipe and the second circular groove and is used for sealing the outer wall of the connecting pipe.

[0009] In a possible design, the first sealing assembly includes a second limiting plate, the second limiting plate is located inside the first circular groove, an inner fixing sleeve is integrally formed on one side of the second limiting plate, a third outer thread is provided on the outer wall of the inner fixing sleeve, a fourth inner thread is provided inside the through hole, and the fourth inner thread is threadably connected to the third outer thread.

[0010] In a possible design, the second sealing assembly includes an outer fixing sleeve, which is arranged on the outside of the connecting pipe, and a first limiting plate is integrally formed at one end of the outer fixing sleeve. A second internal thread is formed on the inner wall of the outer fixing sleeve, and the second internal thread is threadably connected to the first external thread.

[0011] In a possible design, the outer wall of the outer fixing sleeve is provided with a second outer thread, the inner wall of the second circular groove is provided with a first inner thread, and the second outer thread is threadably connected to the first inner thread.

[0012] In a possible design, a first sealing ring is fixedly connected to one side of the first limiting plate, and the first sealing ring contacts one end of the pipe joint.

[0013] In a possible design, a second sealing ring is fixedly connected to one side of the second limiting plate, and the second sealing ring contacts an inner wall of one side of the first circular groove.

[0014] In a possible design, a third sealing ring is fixedly connected to one side of the second limiting plate, and the third sealing ring contacts one end of the connecting pipe.

[0015] In a possible design, outer walls of the connecting pipe, the inner fixing sleeve and the outer fixing sleeve are all covered with raw cloth.

[0016] In the present application, during installation, the inner fixing sleeve can be first sent into the interior of the pipe joint, so that the third external thread is threadedly connected to the fourth internal thread, and the second sealing ring is in conflict with one side of the first circular groove to ensure the sealing of the device, and the connecting pipe is sent into the interior of the pipe joint, so that the first external thread is threadedly connected to the third internal thread, and one end of the connecting pipe is in conflict with one side of the second limit plate. The setting of the third sealing ring can further improve the sealing between the connecting pipe and the second limit plate, and then the first limit plate is screwed into the interior of the first internal thread, so that the second internal thread is threadedly connected to the first external thread, and the second external thread is threadedly connected to the first internal thread. The first sealing ring is in conflict with one end of the pipe joint, which improves the stability of the connection between the first limit plate and the pipe joint. Combined with the raw cloth, the sealing performance of the device can be greatly improved, and the service life of the device can be improved.

[0017] Beneficial effects:

[0018] In the utility model, the water supply pipe inner thread joint water leakage prevention structure can make the second sealing ring contact with one side of the first circular groove through the first sealing component to ensure the sealing of the device, and one end of the connecting pipe contacts with one side of the second limiting plate. The setting of the third sealing ring can further improve the sealing between the connecting pipe and the second limiting plate.

[0019] In the utility model, the anti-leakage structure of the threaded joint in the water supply pipe can make the first sealing ring contact with one end of the pipe joint through the second sealing component, thereby improving the stability of the connection between the first limit plate and the pipe joint, and can greatly improve the sealing performance of the device in combination with the raw cloth, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a water supply pipe internal thread joint water leakage prevention structure proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the explosion structure of a water supply pipe internal thread joint water leakage prevention structure proposed by the utility model;

[0022] Figure 3 This is a three-dimensional cross-sectional structural schematic diagram of a water supply pipe internal thread joint water leakage prevention structure proposed by the utility model;

[0023] Figure 4 The utility model provides a three-dimensional cross-sectional structural schematic diagram of an outer fixing sleeve and an inner fixing sleeve in a water supply pipe inner thread joint water leakage prevention structure.

[0024] In the figure: 1, main pipeline; 2, pipeline joint; 3, first limit plate; 4, connecting pipe; 5, first sealing ring; 6, external fixing sleeve; 7, first external thread; 8, second limit plate; 9, first internal thread; 10, internal fixing sleeve; 11, second external thread; 12, second internal thread; 13, third internal thread; 14, fourth internal thread; 15, third external thread; 16, second sealing ring; 17, third sealing ring; 18, first circular groove; 19, second circular groove; 20, through hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] Reference Figure 1-4, a water supply pipe internal thread joint water leakage prevention structure, which is used in the field of water supply pipes, including: a main pipe 1 and a connecting pipe 4, one side of the main pipe 1 is fixedly connected with a pipe joint 2, the pipe joint 2 and the main pipe 1 are integrally formed, the connecting pipe 4 and the pipe joint 2 are used in conjunction with each other, the outer wall of the connecting pipe 4 is provided with a first external thread 7, the interior of the pipe joint 2 is provided with a first circular groove 18 and a second circular groove 19, the inner diameter of the second circular groove 19 is greater than the inner diameter of the first circular groove 18, the inner wall of the first circular groove 18 is provided with a third internal thread 13, the third internal thread 13 is threadedly connected with the first external thread 7, the interior of the pipe joint 2 is provided with a through hole 20, the through hole 20 is located at one end of the first circular groove 18 and is connected to the first circular groove 18;

[0028] The first sealing component is arranged on the inner wall of one side of the first circular groove 18 and is used to seal one end of the connecting pipe 4. The first sealing component includes a second limiting plate 8, and the second limiting plate 8 is located inside the first circular groove 18. An inner fixing sleeve 10 is integrally formed on one side of the second limiting plate 8. A third external thread 15 is provided on the outer wall of the inner fixing sleeve 10, and a fourth internal thread 14 is provided inside the through hole 20. During installation, the inner fixing sleeve 10 can be first sent into the interior of the pipe joint 2, so that the third external thread 15 is threadedly connected with the fourth internal thread 14, and the second sealing ring 16 conflicts with one side of the first circular groove 18 to ensure that the inner fixing sleeve 10 is in a closed position. To ensure the sealing performance of the device, the fourth internal thread 14 is threadedly connected with the third external thread 15, a second sealing ring 16 is fixedly connected to one side of the second limiting plate 8, the second sealing ring 16 conflicts with the inner wall of one side of the first circular groove 18, a third sealing ring 17 is fixedly connected to one side of the second limiting plate 8, the third sealing ring 17 conflicts with one end of the connecting pipe 4, the connecting pipe 4 is sent into the interior of the pipe joint 2, so that the first external thread 7 is threadedly connected with the third internal thread 13, and one end of the connecting pipe 4 conflicts with one side of the second limiting plate 8, the setting of the third sealing ring 17 can further improve the sealing performance between the connecting pipe 4 and the second limiting plate 8;

[0029] The second sealing component is arranged between the connecting pipe 4 and the second circular groove 19, and is used to seal the outer wall of the connecting pipe 4. The second sealing component includes an external fixing sleeve 6, which is arranged on the outside of the connecting pipe 4. A first limiting plate 3 is integrally formed at one end of the external fixing sleeve 6. A second internal thread 12 is provided on the inner wall of the external fixing sleeve 6. The second internal thread 12 is threadedly connected to the first external thread 7. A second external thread 11 is provided on the outer wall of the external fixing sleeve 6. A first internal thread 9 is provided on the inner wall of the second circular groove 19. The second external thread 11 is threadedly connected to the first internal thread 9. A first sealing ring 5 is fixedly connected to one side of the first limiting plate 3. The first sealing ring 5 conflicts with one end of the pipe joint 2. The first limiting plate 3 is then screwed into the interior of the first internal thread 9, so that the second internal thread 12 is threadedly connected to the first external thread 7, and the second external thread 11 is threadedly connected to the first internal thread 9. The first sealing ring 5 conflicts with one end of the pipe joint 2, thereby improving the stability of the connection between the first limiting plate 3 and the pipe joint 2.

[0030] Example 2

[0031] refer to Figure 1-4 , based on the improvement of Example 1: the outer walls of the connecting pipe 4, the inner fixing sleeve 10 and the outer fixing sleeve 6 are all covered with raw cloth, which can greatly improve the sealing performance of the device and extend the service life of the device.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water-supply pipe internal thread joint water-leakage-proof structure, characterized in that: include: A main pipeline (1) and a connecting pipe (4), wherein one side of the main pipeline (1) is fixedly connected to a pipeline joint (2), the pipeline joint (2) and the main pipeline (1) are integrally formed, the connecting pipe (4) and the pipeline joint (2) are used in conjunction with each other, the outer wall of the connecting pipe (4) is provided with a first external thread (7), the interior of the pipeline joint (2) is provided with a first circular groove (18) and a second circular groove (19), the inner diameter of the second circular groove (19) is larger than the inner diameter of the first circular groove (18), the inner wall of the first circular groove (18) is provided with a third internal thread (13), the third internal thread (13) is threadedly connected to the first external thread (7), the interior of the pipeline joint (2) is provided with a through hole (20), the through hole (20) is located at one end of the first circular groove (18) and is connected to the first circular groove (18); A first sealing component, which is arranged on an inner wall of one side of the first circular groove (18) and is used to seal one end of the connecting pipe (4); A second sealing component, the second sealing component is arranged between the connecting pipe (4) and the second circular groove (19), and is used to seal the outer wall of the connecting pipe (4).

2. A water-supply pipe internal thread joint water-leakage-proof structure according to claim 1, characterized in that: The first sealing assembly comprises a second limiting plate (8), the second limiting plate (8) is located inside the first circular groove (18), an inner fixing sleeve (10) is integrally formed on one side of the second limiting plate (8), a third outer thread (15) is provided on the outer wall of the inner fixing sleeve (10), a fourth inner thread (14) is provided inside the through hole (20), and the fourth inner thread (14) is threadedly connected to the third outer thread (15).

3. A water-supply pipe internal thread joint water-leakage-proof structure according to claim 1, characterized in that: The second sealing assembly comprises an external fixing sleeve (6), the external fixing sleeve (6) being arranged outside the connecting pipe (4), a first limiting plate (3) being integrally formed at one end of the external fixing sleeve (6), a second internal thread (12) being provided on the inner wall of the external fixing sleeve (6), and the second internal thread (12) being threadably connected to the first external thread (7).

4. A water-supply pipe internal thread joint water-leakage-proof structure according to claim 3, characterized in that: The outer wall of the outer fixing sleeve (6) is provided with a second outer thread (11), the inner wall of the second circular groove (19) is provided with a first inner thread (9), and the second outer thread (11) is threadedly connected to the first inner thread (9).

5. A water-supply pipe internal thread joint water-leakage-proof structure according to claim 3, characterized in that: A first sealing ring (5) is fixedly connected to one side of the first limiting plate (3), and the first sealing ring (5) is in contact with one end of the pipe joint (2).

6. A water-supply pipe internal thread joint water-leakage-proof structure according to claim 2, characterized in that: A second sealing ring (16) is fixedly connected to one side of the second limiting plate (8), and the second sealing ring (16) contacts an inner wall of one side of the first circular groove (18).

7. A water-supply pipe internal thread joint water-leakage-proof structure according to claim 2, characterized in that: A third sealing ring (17) is fixedly connected to one side of the second limiting plate (8), and the third sealing ring (17) contacts one end of the connecting pipe (4).

8. The water-supply pipe internal thread joint water-leakage-proof structure according to claim 1, characterized in that: The outer walls of the connecting pipe (4), the inner fixing sleeve (10) and the outer fixing sleeve (6) are all covered with raw cloth.

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